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Java > Open Source Codes > org > springframework > webflow > engine > TransitionCriteria


1 /*
2  * Copyright 2002-2006 the original author or authors.
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  * http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */

16 package org.springframework.webflow.engine;
17
18 import org.springframework.webflow.execution.RequestContext;
19
20 /**
21  * Strategy interface encapsulating criteria that determine whether
22  * or not a transition should execute given a flow execution request context.
23  *
24  * @see org.springframework.webflow.engine.Transition
25  * @see org.springframework.webflow.execution.RequestContext
26  *
27  * @author Keith Donald
28  * @author Erwin Vervaet
29  */

30 public interface TransitionCriteria {
31
32     /**
33      * Check if the transition should fire based on the given flow execution
34      * request context.
35      * @param context the flow execution request context
36      * @return true if the transition should fire, false otherwise
37      */

38     public boolean test(RequestContext context);
39
40 }
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